Anne Truong MDMen's Sexual Health Doctor

Sit All Day? Watch Out For THIS ⚠️ #MensHealth #PelvicPain

20 Aug 2026 · 1 min

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In this segment, Dr. Anne Truong explains the role of the cremaster muscle, which contracts the testicles in response to cold or startling stimuli. She describes how the muscle normally surrounds the testicle, but in many men—especially those who sit for extended periods or experience chronic pelvic pain—the cremaster remains in a semi‑tightened, high‑tension state. This persistent contraction reduces blood flow by compressing veins, impairs temperature regulation, and leads to lymphatic congestion. The resulting physiological changes manifest as a feeling of heaviness or dull discomfort after physical activity, highlighting a hidden consequence of prolonged sitting on male pelvic health.

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This is the muscle that is responsible for the reflex that contracts the testicles when you're cold or when you're startled. This muscle surrounds the testicle. Then many men, particularly those who sit for long hours or deal with chronic pain down there, this muscle stays in a state of high tension. Essentially, it's stuck in a semi-tightened position. Which then lead to reduced circulation or reduced blood flow. And if the veins get compressed, and what happens is that there's not a lot of blood down there, and therefore the temperature is not being well regulated. And then you also have what's called lymphatic congestion, or feeling of heaviness or dull discomfort after physical activity.